Prices in the United States rose 3.9 percent in May from the same month in 2020 as vaccines allowed the economy to bounce back from the Covid-19 crisis, government data said Friday.

Bubble tents are set up outside Café du Soleil in the Manhattan borough of New York City, New York, U.S., September 23, 2020. (Photo from CGTN)

Much of the increase reported in the Commerce Department's May personal consumption expenditures (PCE) data came from a 27.4 percent rise in energy prices, while food prices gained 0.4 percent.